# DOT dataCalc vs Stellar by ARRI

The clearest difference is review sentiment: Stellar by ARRI at 31% against DOT dataCalc's 13%. Stellar by ARRI also leads on iOS requirement (13.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. DOT dataCalc sells 2 in-app purchases, starting at $1.99 per month and Stellar by ARRI sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

DOT dataCalc ships an update monthly, Stellar by ARRI every 6 weeks. The most recent releases landed on September 18, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | DOT dataCalc | Stellar by ARRI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (41 ratings)](https://appshunter.io/ios/app/stellar-by-arri/id1429030664/reviews)** |
| Number of ratings | — | **41** |
| Positive reviews | 12.5% of reviews | **30.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 1 MB | 84 MB |
| Requires iOS | 17.0 | **13.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [JOSE F DA SILVA NT](https://appshunter.io/developer/524992898) | [ARRI Group](https://appshunter.io/developer/733009342) |

## What reviewers say

### DOT dataCalc

[App page](https://appshunter.io/ios/app/dot-datacalc/id524992895)

This app helps digital cinema and video professionals estimate storage needs for their recordings. It calculates file sizes based on chosen camera models, codecs, and recording durations. Access to all features may require a subscription.

**Highlights:** Instant storage estimation, Camera setup options, Supports numerous camera models, Calculates file size by recording time, Multiple codec support, Subscription for full features

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $4.99 | per year |


### Stellar by ARRI

[App page](https://appshunter.io/ios/app/stellar-by-arri/id1429030664)

This app simplifies professional lighting control for film and studio productions. It automates complex DMX settings, offers intuitive interfaces for color adjustments, and seamlessly connects ARRI and third-party fixtures. Organize setups, manage fixtures, and create custom looks with ease.

**Highlights:** Project and scene organization, Automatic fixture discovery (RDM), Auto Layout for DMX management, Advanced color control (CCT, HSI, RGBW, x,y), Fixture grouping and control, Import light plot diagrams, Export/Import projects and scenes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stellar Monthly Subscription | $9.99 | per month |
| Stellar Yearly Subscription | $99.99 | per year |
| Stellar Unlimited | $99.99 | one-time |


## Frequently asked questions

### Is DOT dataCalc free?

DOT dataCalc is free to download, with in-app purchases available.

### Is Stellar by ARRI free?

Stellar by ARRI is free to download, with in-app purchases available.

### Do DOT dataCalc or Stellar by ARRI have ads?

Neither DOT dataCalc nor Stellar by ARRI shows ads.

### Which is updated more often, DOT dataCalc or Stellar by ARRI?

DOT dataCalc ships an update monthly, and Stellar by ARRI every 6 weeks. Most recently, DOT dataCalc was updated on September 18, 2026 and Stellar by ARRI on August 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*